lkml.org 
[lkml]   [2001]   [Dec]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [BUG?] RAID sub system / tux
    hi

    Just wanted to say I've reproduced the error in tux-D1.

    thanks for any help

    roy

    On Thu, 13 Dec 2001, Roy Sigurd Karlsbakk wrote:

    > hi all
    >
    > After testing this for a while, I'm quite sure there's some kind of bug
    > that locks up I/O under heavy traffic.
    >
    > Hardware configuration:
    >
    > 1xAthlon 1133
    > 1GB RAM
    > 1 20G boot disk
    > 2 120G ide drives on a promise ata133 (20269) controller
    >
    > Kernel: Vanilla 2.4.16 + tux-D0
    >
    > /etc/raidtab:
    >
    > raiddev /dev/md0
    > raid-level 0
    > nr-raid-disks 2
    > persistent-superblock 0
    > chunk-size 4096
    >
    > device /dev/hde
    > raid-disk 0
    > device /dev/hdg
    > raid-disk 1
    >
    > IDE readahead setting:
    >
    > echo file_readahead:1024 > /proc/ide/hd[eg]/settings
    > (I've tried down to 256 with no change.)
    >
    > file system: independant. I've tried with xfs and ext2 and get the same
    > result.
    >
    > Testing:
    > I make some 100 files, each ~1GB, and start ~100 wget processes to
    > retrieve data from http://localhost/file-nnnn. Each process is retrieving
    > a separate file, as to simulate the app. Usually, this works fine in the
    > beginning, but after a while it all locks up, and the [TUX worker]
    > (mother) process stops giving me any data, and starts using 100% system
    > time. If I restart tux, I can do some data retrieval for some time, but
    > then it locks up again. It's easily reproducable to just start, say, 50
    > wget processes, killall wget, and then restart the 50 wget processes.
    >
    > Thanks for all help
    >
    > regards
    >
    > roy
    >
    > --
    > Roy Sigurd Karlsbakk, MCSE, MCNE, CLS, LCA
    >
    > Computers are like air conditioners.
    > They stop working when you open Windows.
    >
    >
    >
    >
    > _______________________________________________
    > tux-list mailing list
    > tux-list@redhat.com
    > https://listman.redhat.com/mailman/listinfo/tux-list
    >

    --
    Roy Sigurd Karlsbakk, MCSE, MCNE, CLS, LCA

    Computers are like air conditioners.
    They stop working when you open Windows.

    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2005-03-22 13:14    [W:0.027 / U:29.704 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site